ABAC A39B/90 CT4 [19/96] Fault cause remedy

19

G

B

FAULT CAUSE REMEDY

Themotorand/orthecompressoroverheat

irregularly.

Insufcientventilation. Improveambientconditions.

Closingofairducts. Checkandifnecessarycleantheairlter.

Insufcientlubrication.

Releasethecompressorheadbyusingthe

pressureswitchpushbutton.

Lowtemperature. Improveambientconditions.

Voltagetoolow.

Checkthatthemainsvoltagematchesthatof

thedataplate.Eliminateanyextensions.

Afteranattempttostartthecompressor,itstops

duetotrippingofthethermalcutoutcausedby

forcingofthemotor.

Incorrectorinsufcientlubrication.

Checkleveloil.

Single-stage, mono-phase versions: operate

onthebuttonofthepressureswitchreturning

thistotheOFFposition(g. 1a).

Resetthethermalcutout(g. 2)andrestart

(gures 1b).

Ifthefaultpersists,calltheServiceCenter.

Versions with delta-star starter:

operateonthebuttonofthethermalcutout

locatedinsidetheboxoftheelectricpanel(g.

Ifthefaultpersists,calltheServiceCenter.

Electricfault. CalltheServiceCenter.

Whenoperating,thecompressorvibratesand

themotoremitsanirregularbuzzingsound.Ifit

stops,itdoesnotrestartalthoughthesoundof

themotorispresent.

Single-phase motors:

faultycapacitor.

Havethecapacitorreplaced.

3-phase motors:

Toomuchoilinsidetheunit. Checkoillevel.

Wearonsegments. CalltheServiceCenter.

Leakingofcondensatefromtheventcock. Presenceofdirt/gritinsidethecock. Cleanthecock.

Any other type of operation must be carried out by authorized Service Centers, requesting original parts. Tampering with the machine may impair

its safety and in any case make the warranty null and void.